ABB FS403E-C20/0.03

The ABB FS403E-C20/0.03 is an automated residual current circuit breaker designed for precise protection in electrical distribution systems worldwide. Engineered to detect differential currents, this device ensures enhanced safety by quickly isolating fault conditions.

Key Technical Features and Applications of FS403E-C20/0.03

• Differential current monitoring enables rapid disconnection during earth faults, minimizing electrical hazards in industrial environments.
• Integrated automatic voltage and residual current trip (AVRT) functionality supports reliable fault detection under varying load conditions.
• Compact design facilitates installation in confined panel spaces without compromising operational reliability.
• Rated for 20 A and 30 mA sensitivity, suitable for preventing leakage currents in manufacturing and commercial power systems.

This circuit breaker is essential in industrial installations where personnel safety from electric shock is critical and in machinery control panels requiring precise fault interruption.